The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 15, 1986
Filed:
Oct. 04, 1983
Applicant:
Inventor:
Mishio Hayashi, Saitama, JP;
Assignee:
Takeda Riken Kogyo Kabushikikaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R / ;
U.S. Cl.
CPC ...
364484 ; 324 / ; 328133 ;
Abstract
First and second input signals are waveform-shaped into rectangular wave signals and, in a period measuring mode, one of the rectangular wave signal is input into a time interval measuring circuit and clock pulses are counted during the period of the rectangular wave signal. In a time interval measuring mode, the clock pulses are counted by the time interval measuring circuit over the time interval between one edge of the one rectangular wave signal and the corresponding edge of the other rectangular wave signal, and the phase difference between the first and second input terminals is calculated from the count values.